Accessory for beverage container



FIG. 1 is a perspective view of an accessory for a beverage container showing my new design;

FIG. 2 is a side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a cross-sectional side view thereof taken along line 4-4 of FIG. 2; and,

FIG. 5 is a bottom view thereof. 

The ornamental design for an accessory for a beverage container, as shown and described. 